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node_modules/uuid/test/test.js
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var assert = require('assert');
var uuid = require('../');
// Verify ordering of v1 ids created with explicit times
var TIME = 1321644961388; // 2011-11-18 11:36:01.388-08:00
function compare(name, ids) {
test(name, function() {
// avoid .map for older browsers
for (var i=0 ; i<ids.length ; ++i) {
ids[i] = ids[i].split('-').reverse().join('-');
}
ids = ids.sort();
var sorted = ([].concat(ids)).sort();
assert(sorted.toString() == ids.toString(), name + ' have expected order');
});
}
// Verify ordering of v1 ids created using default behavior
compare('uuids with current time', [
uuid.v1(),
uuid.v1(),
uuid.v1(),
uuid.v1(),
uuid.v1()
]);
// Verify ordering of v1 ids created with explicit times
compare('uuids with time option', [
uuid.v1({msecs: TIME - 10*3600*1000}),
uuid.v1({msecs: TIME - 1}),
uuid.v1({msecs: TIME}),
uuid.v1({msecs: TIME + 1}),
uuid.v1({msecs: TIME + 28*24*3600*1000})
]);
test('msec', function() {
assert(
uuid.v1({msecs: TIME}) != uuid.v1({msecs: TIME}),
'IDs created at same msec are different'
);
});
test('exception thrown when > 10k ids created in 1ms', function() {
// Verify throw if too many ids created
var thrown = false;
try {
uuid.v1({msecs: TIME, nsecs: 10000});
} catch (e) {
thrown = true;
}
assert(thrown, 'Exception thrown when > 10K ids created in 1 ms');
});
test('clock regression by msec', function() {
// Verify clock regression bumps clockseq
var uidt = uuid.v1({msecs: TIME});
var uidtb = uuid.v1({msecs: TIME - 1});
assert(
parseInt(uidtb.split('-')[3], 16) - parseInt(uidt.split('-')[3], 16) === 1,
'Clock regression by msec increments the clockseq'
);
});
test('clock regression by nsec', function() {
// Verify clock regression bumps clockseq
var uidtn = uuid.v1({msecs: TIME, nsecs: 10});
var uidtnb = uuid.v1({msecs: TIME, nsecs: 9});
assert(
parseInt(uidtnb.split('-')[3], 16) - parseInt(uidtn.split('-')[3], 16) === 1,
'Clock regression by nsec increments the clockseq'
);
});
test('explicit options product expected id', function() {
// Verify explicit options produce expected id
var id = uuid.v1({
msecs: 1321651533573,
nsecs: 5432,
clockseq: 0x385c,
node: [ 0x61, 0xcd, 0x3c, 0xbb, 0x32, 0x10 ]
});
assert(id == 'd9428888-122b-11e1-b85c-61cd3cbb3210', 'Explicit options produce expected id');
});
test('ids spanning 1ms boundary are 100ns apart', function() {
// Verify adjacent ids across a msec boundary are 1 time unit apart
var u0 = uuid.v1({msecs: TIME, nsecs: 9999});
var u1 = uuid.v1({msecs: TIME + 1, nsecs: 0});
var before = u0.split('-')[0], after = u1.split('-')[0];
var dt = parseInt(after, 16) - parseInt(before, 16);
assert(dt === 1, 'Ids spanning 1ms boundary are 100ns apart');
});
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